Is it really possible to measure heart rate through a phone camera?
Measure Heart Rate from Smartphone Camera Lens
Measure blood pressure with a smartphone camera! New diagnostic technology research
Help with choosing the manufacturer / model of the heart rate monitor. Requirements for the heart rate monitor: 1. Real-time information display on a wristwatch / bracelet 2. When moving from one heart rate zone to another - giving a sound / vibration signal 3. Strava app compatibility